Applied Mathematics and Mechanics (English Edition) ›› 2023, Vol. 44 ›› Issue (6): 941-960.doi: https://doi.org/10.1007/s10483-023-3003-6

• Articles • Previous Articles     Next Articles

High-order targeted essentially non-oscillatory scheme for two-fluid plasma model

Yuhang HOU1,2, Ke JIN3,4, Yongliang FENG1,2, Xiaojing ZHENG3,4   

  1. 1. School of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, China;
    2. Institute of Extreme Mechanics, Northwestern Polytechnical University, Xi'an 710072, China;
    3. Shaanxi Key Laboratory of Space Extreme Detection, Xi'an 710071, China;
    4. Research Center for Applied Mechanics, Xidian University, Xi'an 710071, China
  • Received:2022-11-02 Revised:2023-03-06 Online:2023-06-01 Published:2023-05-29
  • Contact: Xiaojing ZHENG, E-mail: xjzheng@lzu.edu.cn
  • Supported by:
    the National Natural Science Foundation of China (Nos. 12072246, 11972272, and 11872286) and the National Numerical Wind Tunnel Project of China (No. NNW2020ZT3-A23)

Abstract: The weakly ionized plasma flows in aerospace are commonly simulated by the single-fluid model, which cannot describe certain nonequilibrium phenomena by finite collisions of particles, decreasing the fidelity of the solution. Based on an alternative formulation of the targeted essentially non-oscillatory (TENO) scheme, a novel high-order numerical scheme is proposed to simulate the two-fluid plasmas problems. The numerical flux is constructed by the TENO interpolation of the solution and its derivatives, instead of being reconstructed from the physical flux. The present scheme is used to solve the two sets of Euler equations coupled with Maxwell's equations. The numerical methods are verified by several classical plasma problems. The results show that compared with the original TENO scheme, the present scheme can suppress the non-physical oscillations and reduce the numerical dissipation.

Key words: plasma, high-order scheme, targeted essentially non-oscillatory (TENO) scheme, two-fluid model

2010 MSC Number: 

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